Swivel connection for electric cords



Oct. 23, 1934. ELSAS 1,977,757

SWIVEL CONNECTION FOR ELECTRIC coRDs \Filed March 18. 1951 6/3 A? m a 101/ 6Jl76 artozwu o.

Patented Oct. 23, 1934 v 1.97735?" I SWIVEL CONNECTIONFOR ELEGTRIC.

- I 1. CORDS; f j Ed w ard J. Elsas, Kansas 'City,]Kans. Application.Marchis, 1931, Serial No. 523,588. f 1 can; (di its-g am)" Thisinvention relates ,to 'a swivel" connectio n for electric wires orcords, the primary object of the invention being to provide meanswhereby the electric wires or cords connected with telephones, lamps,irons, or other electric appliances,

will not become twisted or knotted while in use.

An important object of the invention is to provide a swivel for electricwires or cords, so constructed that the swivel will be out of the wayand will not catch on the edges of the table, desk, or other surface onwhich the appliance is being used.

Another important object of the invention is to provide a swivelconnection which will securely hold the ends of the wires together,without the invention resides in the combination and arrangement ofparts and in the details of construction hereinafter described andclaimed, it being understood that changes in the precise embodiment ofthe invention herein disclosed, may be made within the scope of what isclaimed, without departing from the spirit of the invention.

Referring to the drawing:

Figure l is a longitudinal sectional view through a connectionconstructed in accordance with the invention.

Figure 2 is an enlarged elevational view of the swivel, the same beingpartly broken away.

Figure 3 is a sectional View taken on line 3-3 of Figure 1.

Figure 4 is a sectional view taken on line 44 of Figure 1. a

Figure 5 is a sectional view taken on line 5--5 of Figure 1.

Figure 6 is a perspective View showing the inner members of theconnection of the device, as disconnected.

Figure 7 is a perspective view of the tubular body portion or casing.

Referring to the drawing in detail, the connector embodies an outertubular body portion 5, which is of a diameter approximately the same asthe electric cord with which the device is used. 1

As clearly shown by Figure 1 of the drawing, the body portion 5 which isformed of metal material to provide a conductor, is formed with slots 6,the portion of the body between the slots being depressed as at 7,providing a space into which the wire 8, of the electric current 9, isheld and secured to the body portion -5.

The reference character 10 designates tongues which are formed bycutting the body and pressing a portion of the body inwardly, thetongues being designed to engage behind the annularshoulder 11, in such.a way as to permit jof rotar movem nt r the swivel 12, of which theshoulder forms apart, but at the same'time t prevent movement of theswivel 12,1ongitudinally of the body portion.

away portions extended longitudinally thereof, the cut away portionsdefining fingers 13 which are designed to be bent inwardly in a mannerto strengthen the swivel. An opening 14 is formed near the inner ends ofcertain of the fingers 13, which opening is of a diameter to receive theexposed end 15 of the electric wire, forming a part of the current 16.

It might be further stated that when the exposed end 15 of the wire ispositioned within this opening 14 and the fingers are bent inwardly, thewire is securely gripped between the fingers, and held within theopening against accidental displacement.

Positioned adjacent to the inner end of the swivel l2, and contactingtherewith, is a plug 17 which is constructed of suitable insulatingmaterial. This plug 17 is formed with a central opening to receive thewire 18 of the cord 19, the wire being free of its insulation, so thatit will make circuit with the metallic member 20 which in turn isrotatably mounted within the tubular inner member 21 in such a way thatthe member member is constructed, between the slot and the end of thetubular member, being bent inwardly as at 23, providing lateral openingsfor the reception of the wire 24 of the cord which is attached to oneend of the swivel. In positioning the wire in the lateral openings, itwill be seen that the wire is brought through one of the openings, overone end of the inwardly extended portion 23, and passed into theopposite opening.

The circuit between wires 18 and 2 will be made through the innertubular member 21 and member 20, while the circuit between the wires 8and 15 will be made through the body portion 5 and swivel 12.

From the foregoing it will be obvious that due to this construction, oneend of the wire may swivel freely in such a way as to insure against thewire twisting or knotting while in use on electric appliances such aslamps, irons, or the like.

.65 As clearly shown by Figure 6 of the drawing,

the swivel 12- is provided with a plurality of cut as shown by Figure 1of the drawing, in order 7 It might be further stated that the wiresextending into the ends of the body portion, may be insulated from eachother, by means of a suitable plastic insulating material, not shown.-

I claim: A swivel connection for electric wires, com-,

prising a tubular body portion, an insulating plug" Within the bodyportion, a tubular swivel fitted in one end of the body portion andhaving an annular shoulder formed on the inner end thereof, tonguesextending inwardly from the body portion and engaging the. shoulder,securingthe' swivel to the body portion and holding the swivel againstthe insulating plug whereby the swivel may rotate within the bodyportion but is held against movement longitudinally of the body portion,wires extending into one end of the body portion, one of the wires beingconnected with the the inner tubular member, a member for establishing acircuit between the last mentioned wire and the wire passing through theswivel, and said member adapted to hold the inner tubular member'inposition against the insulating plug,

the other of the last mentioned wires being secured to the tubular bodyportion and in circuit with the wire connected to the swivel, throughthe tubular body portion.

EDWARD J. ELSAS.

